The Intelsat 603 satellite, stranded in an unusable orbit since launch aboard a
Commercial Titan III launch vehicle in March 1990, was captured by crewmembers during an extravehicular activity (EVA) and equipped with a new
perigee kick motor. The satellite was subsequently released into orbit and the new motor fired to put the spacecraft into a geosynchronous orbit for operational use. The capture required three EVAs: a planned one by astronauts Thuot and Hieb, who were unable to attach a capture bar to the satellite from a position on the RMS (
Canadarm); a second unscheduled but identical attempt the following day; and finally, an unscheduled but successful hand capture by Thuot, Hieb and Akers as commander Brandenstein delicately maneuvered the orbiter to within a few feet of the
communications satellite. An Assembly of Station by EVA Methods (ASEM) structure was erected in the cargo bay by the crew to serve as a platform to aid in the hand capture and subsequent attachment of the capture bar. A planned EVA also was performed by astronauts Thornton and Akers as part of the ASEM experiment to demonstrate and verify maintenance and assembly capabilities for
Space Station Freedom. The ASEM space walk, originally scheduled for two successive days, was cut to one day because of the lengthy Intelsat retrieval operation. Other "payloads of opportunity" experiments conducted included Commercial Protein Crystal Growth (CPCG), Ultraviolet Plume Imager (UVPI) and the
Air Force Maui Optical Station (AMOS) investigation. The mission was extended by two days to complete all the mission objectives. On flight day 7, the
Ku-band antenna lost its pointing capability. It had to be stowed manually during the final EVA. The following records were set during the STS-49 mission: • First flight of the
Space Shuttle Endeavour • First (and only) EVA involving three astronauts. • Second and fourth longest EVAs to date: 8 hours, 29 minutes, and 7 hours, 45 minutes. (Longest EVA to date was during
STS-102 in 2001: 8 hours 56 minutes; third longest EVA was during
STS-61 in 1993: 7 hour 54 minutes) • First Shuttle mission to feature four EVAs. • The second longest EVA time for a single Shuttle mission: 25 hours and 27 minutes, or 59:23 person hours. (The longest is
STS-61 with 35 hours and 28 minutes) • First Shuttle mission requiring three rendezvous with an orbiting spacecraft. • First use of a
drag chute during a Shuttle landing. == Wake-up Calls ==